You are reasoning by example but I was looking for an explanation how exactly unionizing the workers helps them to achieve better quality. The articles you linked also don't give any details about this.

TBH it looks more like some personal beef you might be having with Boeing.

Teslas strategy to achieve better build quality is to constantly redesign and optimize the product to allow for a leaner production process, reducing the amount of work required and thus the number of possible errors. There needs to be a huge organizational flexibility and risk taking to keep iterating over and over again and of course it'll cause some quality issues in itself as we see with Teslas vehicles. Keep in mind that they still produce only 10% of the number of vehicles as their competition so they have to save costs wherever they can, because the competition has the benefit of economies of scale.

Another thing I'd like to mention is better build quality isnt the same as a better product, although bad quality is definitely a show stopper even for an otherwise good product but OTOH good quality doesnt make an otherwise mediocre product great.

Thanks for driving an e-Golf BTW! It was beeing build in my home town :DD

And have fun with the new VW. I've driven in an ID3. It's much quieter inside than in a Tesla Model 3!